conn = Neo4jConnection(uri="bolt://localhost:7687", user="superman", pwd="pizza") Let’s create an instance of connection with the parameters defined before. For more details, check the Cypher Refcard. In the query method, the query string should be written in Neo4j’s graph query language: Cypher. The class above requires the url, the username and the password during the initialization. from neo4j import GraphDatabase class Neo4jConnection: def _init_(self, uri, user, pwd): self._uri = uri self._user = user self._pwd = pwd self._driver = None try: self._driver = GraphDatabase.driver(self._uri, auth=(self._user, self._pwd)) except Exception as e: print("Failed to create the driver:", e) def close(self): if self._driver is not None: self._driver.close() def query(self, query, db=None): assert self._driver is not None, "Driver not initialized!" session = None response = None try: session = self._ssion(database=db) if db is not None else self._ssion() response = list(n(query)) except Exception as e: print("Query failed:", e) finally: if session is not None: session.close() return response Now, we are ready to query the graph database! Make Queries in Pythonįirstly, we need to define a connection class to connect to the graph database. If everything is working, you should receive as output the version of neo4j package (4.0.1 in this case). from neo4j import _version_ as neo4j_version print(neo4j_version) Once installed neo4j package, you can try to import it in Python. However, there are other well-designed community drivers you can consider for future projects. This is the officially supported driver so we stick to it in this tutorial. Install the package neo4j in our Python environment: pip install neo4j Now, we are ready from the server side! Let’s move to Python! Install Neo4j Python Driver
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